| Year |
Spring Frost |
Fall Frost |
||||||
| 36°F |
32°F |
28°F |
24°F |
36°F |
32°F |
28°F |
24°F |
|
ABERDEEN REGIONAL ARPT(390020) |
05/02 |
04/23 |
04/09 |
04/04 |
09/08 |
09/09 |
09/22 |
09/25 |
ACADEMY 2 NE(390043) |
04/24 |
04/19 |
04/09 |
03/30 |
09/07 |
09/17 |
09/22 |
09/23 |
ALEXANDRIA(390128) |
04/24 |
04/14 |
04/03 |
03/25 |
09/16 |
09/22 |
09/23 |
10/02 |
ANDOVER(390198) |
05/08 |
04/21 |
04/16 |
04/08 |
09/19 |
09/19 |
09/25 |
09/30 |
ARDMORE 2 N(390236) |
05/19 |
05/04 |
04/20 |
04/15 |
08/29 |
09/09 |
09/11 |
09/21 |
ARLINGTON 1 W(390281) |
05/02 |
04/24 |
04/17 |
04/02 |
09/15 |
09/22 |
09/25 |
10/02 |
ARMOUR(390296) |
04/24 |
04/14 |
04/04 |
03/30 |
09/13 |
09/20 |
09/22 |
09/27 |
BELLE FOURCHE(390559) |
05/07 |
04/25 |
04/16 |
04/05 |
09/02 |
09/12 |
09/20 |
09/30 |
BELLE FOURCHE 22 NNW(390565) |
05/07 |
05/01 |
04/22 |
04/15 |
08/31 |
09/11 |
09/14 |
09/18 |
BELLE FOURCHE 29 NNW(390567) |
05/17 |
04/25 |
04/19 |
04/04 |
09/02 |
09/02 |
09/20 |
09/21 |
BISON(390701) |
05/07 |
04/24 |
04/16 |
04/07 |
09/09 |
09/13 |
09/21 |
09/24 |
BONESTEEL(390778) |
04/25 |
04/18 |
04/05 |
03/22 |
09/11 |
09/19 |
09/23 |
10/02 |
BRIDGEWATER(391032) |
04/24 |
04/17 |
04/05 |
03/31 |
09/15 |
09/22 |
09/23 |
10/09 |
BRITTON(391049) |
05/06 |
04/22 |
04/17 |
04/05 |
08/29 |
09/12 |
09/22 |
09/27 |
BROOKINGS 2 NE(391076) |
05/08 |
04/25 |
04/10 |
04/05 |
09/01 |
09/13 |
09/19 |
09/26 |
CAMP CROOK(391294) |
05/17 |
05/12 |
04/27 |
04/15 |
08/26 |
08/31 |
09/07 |
09/14 |
CANTON 4 WNW(391392) |
04/25 |
04/19 |
04/09 |
03/25 |
09/08 |
09/17 |
09/21 |
09/27 |
CASTLEWOOD(391519) |
05/08 |
04/26 |
04/09 |
04/06 |
09/01 |
09/12 |
09/22 |
09/27 |
CEDAR BUTTE 1 NE(391539) |
05/06 |
04/20 |
04/08 |
03/31 |
09/12 |
09/18 |
09/20 |
10/01 |
CENTERVILLE 6 SE(391579) |
04/23 |
04/10 |
04/06 |
03/31 |
09/08 |
09/12 |
09/19 |
09/22 |
CHAMBERLAIN(391609) |
04/25 |
04/06 |
04/05 |
03/31 |
09/13 |
09/30 |
10/17 |
10/17 |
CHAMBERLAIN 5 S(391621) |
04/25 |
04/24 |
04/10 |
03/30 |
09/17 |
09/21 |
09/22 |
10/07 |
CLARK(391739) |
05/02 |
04/22 |
04/06 |
04/03 |
09/15 |
09/21 |
09/22 |
10/08 |
CLEAR LAKE(391777) |
05/02 |
04/21 |
04/09 |
04/03 |
09/08 |
09/21 |
09/24 |
10/03 |
COLUMBIA 8 N(391873) |
05/02 |
04/19 |
04/15 |
04/05 |
09/08 |
09/11 |
09/22 |
09/26 |
CONDE(391917) |
04/25 |
04/24 |
04/18 |
04/11 |
09/10 |
09/19 |
09/20 |
09/25 |
COTTONWOOD 2 E(391972) |
05/13 |
05/05 |
04/22 |
04/15 |
09/01 |
09/11 |
09/16 |
09/22 |
CUSTER(392087) |
05/20 |
05/07 |
05/02 |
04/17 |
08/06 |
09/05 |
09/10 |
09/18 |
DEADWOOD(392207) |
05/20 |
05/09 |
04/24 |
04/15 |
08/29 |
09/08 |
09/13 |
09/18 |
DE SMET(392302) |
04/24 |
04/17 |
04/06 |
03/30 |
09/14 |
09/22 |
09/23 |
10/08 |
DUPREE(392429) |
05/07 |
04/25 |
04/16 |
04/04 |
09/06 |
09/11 |
09/20 |
09/24 |
DUPREE 15 SSE(392446) |
05/02 |
04/24 |
04/16 |
04/05 |
09/02 |
09/10 |
09/17 |
09/27 |
EDGEMONT(392557) |
05/10 |
05/02 |
04/18 |
04/09 |
09/08 |
09/14 |
09/18 |
09/21 |
EDGEMONT 23 NNW(392565) |
05/18 |
05/06 |
04/27 |
04/20 |
09/08 |
09/14 |
09/18 |
09/18 |
ELM SPRINGS 3 ESE(392647) |
05/06 |
04/28 |
04/22 |
04/05 |
09/10 |
09/14 |
09/18 |
09/22 |
EUREKA(392797) |
05/07 |
04/23 |
04/08 |
04/08 |
09/01 |
09/11 |
09/21 |
09/22 |
FAITH(392852) |
05/04 |
04/24 |
04/09 |
04/02 |
09/13 |
09/15 |
09/18 |
09/24 |
FAULKTON 1 NW(392927) |
04/30 |
04/23 |
04/17 |
04/05 |
09/03 |
09/13 |
09/19 |
09/24 |
FLANDREAU(392984) |
05/06 |
04/23 |
04/06 |
04/01 |
09/01 |
09/15 |
09/23 |
09/27 |
FORESTBURG 3 NE(393029) |
04/24 |
04/18 |
04/09 |
04/03 |
09/08 |
09/19 |
09/22 |
09/23 |
FORT MEADE(393069) |
05/06 |
04/21 |
04/15 |
04/04 |
09/07 |
09/14 |
09/21 |
10/01 |
FORT PIERRE 17 WSW(393076) |
05/07 |
04/28 |
04/16 |
03/30 |
09/13 |
09/19 |
09/19 |
09/22 |
FORT SULLY 8 NE(393082) |
05/03 |
05/03 |
05/03 |
04/09 |
08/31 |
09/10 |
09/28 |
09/30 |
GANN VALLEY 4 NW(393217) |
05/03 |
04/25 |
04/09 |
04/04 |
09/07 |
09/11 |
09/22 |
09/23 |
GETTYSBURG(393294) |
05/07 |
04/22 |
04/15 |
04/03 |
09/11 |
09/19 |
09/21 |
09/29 |
GETTYSBURG 14 W(393300) |
04/25 |
04/25 |
04/06 |
04/05 |
09/03 |
09/03 |
09/24 |
09/30 |
GLAD VALLEY 2 W(393316) |
05/07 |
04/30 |
04/16 |
04/05 |
09/07 |
09/14 |
09/18 |
09/24 |
GREGORY(393452) |
05/01 |
04/22 |
04/11 |
04/03 |
09/09 |
09/16 |
09/23 |
09/24 |
HARRINGTON(393574) |
05/07 |
04/29 |
04/20 |
04/08 |
09/03 |
09/11 |
09/12 |
09/22 |
HARROLD 12 SSW(393608) |
05/01 |
04/27 |
04/22 |
04/15 |
08/28 |
08/29 |
09/14 |
09/21 |
HIGHMORE 1 W(393832) |
05/07 |
04/23 |
04/20 |
04/06 |
09/08 |
09/14 |
09/22 |
09/22 |
HIGHMORE 23 N(393838) |
04/30 |
04/23 |
04/16 |
04/08 |
08/28 |
09/09 |
09/19 |
09/23 |
HILLAND 2 NW(393857) |
05/07 |
04/23 |
04/16 |
04/14 |
09/09 |
09/11 |
09/11 |
09/21 |
HILL CITY(393868) |
06/08 |
05/19 |
05/07 |
05/02 |
07/04 |
08/13 |
09/09 |
09/11 |
HOPEWELL 1 SE(393987) |
04/25 |
04/21 |
04/05 |
03/17 |
09/13 |
09/13 |
09/22 |
09/22 |
HOT SPRINGS(394007) |
05/05 |
05/01 |
04/16 |
04/08 |
09/01 |
09/09 |
09/14 |
09/20 |
HOWARD(394037) |
04/24 |
04/17 |
04/04 |
03/30 |
09/11 |
09/18 |
09/22 |
09/30 |
HURON REGIONAL ARPT(394127) |
04/25 |
04/20 |
04/06 |
04/02 |
09/08 |
09/14 |
09/22 |
09/23 |
INTERIOR 3 NE(394184) |
04/23 |
04/22 |
04/11 |
03/20 |
09/11 |
09/18 |
09/22 |
10/07 |
IPSWICH(394206) |
05/06 |
04/24 |
04/17 |
04/06 |
09/02 |
09/11 |
09/20 |
09/22 |
KADOKA(394413) |
04/24 |
04/23 |
04/08 |
04/05 |
09/01 |
09/19 |
09/25 |
09/26 |
KENNEBEC(394516) |
05/03 |
04/25 |
04/17 |
04/03 |
09/01 |
09/13 |
09/22 |
09/22 |
KIRLEY 6 N(394596) |
04/27 |
04/21 |
04/07 |
03/29 |
09/11 |
09/17 |
09/21 |
09/22 |
KYLE(394630) |
05/31 |
05/30 |
04/19 |
04/18 |
09/02 |
09/03 |
09/21 |
09/21 |
LAKE SHARPE PROJECT(394766) |
05/01 |
04/26 |
04/16 |
04/03 |
09/14 |
09/21 |
09/22 |
10/07 |
LEAD(394834) |
05/09 |
05/06 |
04/21 |
04/08 |
09/01 |
09/12 |
09/18 |
09/21 |
LEMMON(394864) |
05/06 |
04/28 |
04/19 |
04/05 |
09/07 |
09/13 |
09/19 |
09/22 |
LEOLA(394891) |
05/04 |
04/22 |
04/12 |
04/05 |
09/08 |
09/17 |
09/22 |
09/24 |
LONG VALLEY(394983) |
05/06 |
04/25 |
04/19 |
04/03 |
09/01 |
09/14 |
09/16 |
09/28 |
LUDLOW 3 SSE(395048) |
05/07 |
05/05 |
04/20 |
04/14 |
08/31 |
09/10 |
09/12 |
09/21 |
MADISON 2 SE(395090) |
04/26 |
04/15 |
04/06 |
03/26 |
09/12 |
09/19 |
09/22 |
10/02 |
MANDERSON 3 NE(395154) |
05/07 |
05/04 |
04/23 |
04/13 |
09/13 |
09/18 |
09/21 |
10/07 |
MARCUS 8 NNW(395184) |
06/16 |
05/24 |
05/24 |
04/09 |
09/02 |
09/21 |
09/28 |
09/30 |
MARION(395228) |
04/23 |
04/15 |
04/05 |
03/26 |
09/16 |
09/21 |
09/22 |
10/10 |
MARTIN(395281) |
05/09 |
04/21 |
04/16 |
04/05 |
09/03 |
09/13 |
09/29 |
10/07 |
MARTIN 5 E(395285) |
05/07 |
05/06 |
04/29 |
04/25 |
08/18 |
09/01 |
09/12 |
09/22 |
MAURINE 10 SW(395325) |
05/08 |
04/30 |
04/20 |
04/12 |
09/07 |
09/11 |
09/14 |
09/20 |
MC INTOSH 6 SE(395381) |
05/06 |
04/27 |
04/16 |
04/07 |
09/05 |
09/14 |
09/20 |
09/22 |
MC LAUGHLIN(395406) |
05/09 |
04/25 |
04/20 |
04/08 |
09/03 |
09/12 |
09/19 |
09/22 |
MELLETTE(395456) |
04/29 |
04/23 |
04/17 |
04/06 |
09/04 |
09/15 |
09/20 |
09/22 |
MENNO(395481) |
04/22 |
04/17 |
04/06 |
03/24 |
09/08 |
09/17 |
09/22 |
09/23 |
MIDLAND(395506) |
05/11 |
05/06 |
04/20 |
04/09 |
08/28 |
09/11 |
09/19 |
09/25 |
MILBANK 2 SSW(395536) |
05/07 |
04/23 |
04/09 |
04/03 |
09/07 |
09/17 |
09/25 |
10/02 |
MILESVILLE 5 NE(395544) |
05/06 |
04/21 |
04/16 |
04/03 |
09/10 |
09/14 |
09/21 |
09/22 |
MILLER(395561) |
04/24 |
04/16 |
04/08 |
04/02 |
09/10 |
09/21 |
09/22 |
10/02 |
MISSION(395620) |
05/07 |
04/24 |
04/18 |
04/08 |
09/02 |
09/14 |
09/21 |
09/30 |
MISSION 14 S(395638) |
05/06 |
04/24 |
04/18 |
04/03 |
09/11 |
09/14 |
09/22 |
09/30 |
MITCHELL 2 N(395671) |
04/24 |
04/09 |
04/06 |
03/25 |
09/13 |
09/22 |
09/27 |
10/07 |
MOBRIDGE 2 NNW(395691) |
05/03 |
04/24 |
04/14 |
04/01 |
09/18 |
09/21 |
09/27 |
10/13 |
MT RUSHMORE NATL MEM(395870) |
05/07 |
04/23 |
04/20 |
04/05 |
09/07 |
09/13 |
09/18 |
09/24 |
MURDO(395891) |
04/29 |
04/22 |
04/11 |
04/03 |
09/10 |
09/20 |
09/22 |
10/02 |
NEWELL(396054) |
05/05 |
04/25 |
04/14 |
04/05 |
09/09 |
09/12 |
09/18 |
09/26 |
OAHE DAM(396170) |
04/26 |
04/20 |
04/05 |
03/30 |
09/20 |
09/22 |
09/30 |
10/11 |
OELRICHS(396212) |
05/08 |
05/04 |
04/16 |
04/05 |
09/07 |
09/11 |
09/20 |
09/22 |
ONIDA 4 NW(396292) |
04/25 |
04/23 |
04/16 |
04/02 |
09/07 |
09/14 |
09/23 |
09/29 |
ORAL(396304) |
05/07 |
04/27 |
04/20 |
04/08 |
09/01 |
09/11 |
09/18 |
09/27 |
PACTOLA DAM(396427) |
05/26 |
05/19 |
05/06 |
04/22 |
07/04 |
08/29 |
09/10 |
09/14 |
PHILIP 1 S(396552) |
05/06 |
04/25 |
04/21 |
04/03 |
09/09 |
09/11 |
09/18 |
09/29 |
PICKSTOWN(396574) |
04/25 |
04/14 |
04/05 |
03/30 |
09/13 |
09/22 |
09/23 |
10/17 |
PIERRE MUNICIPAL AP(396597) |
04/24 |
04/18 |
04/08 |
03/30 |
09/11 |
09/19 |
09/24 |
09/30 |
PLAINVIEW 4 SSW(396636) |
05/07 |
04/24 |
04/16 |
04/04 |
09/11 |
09/18 |
09/21 |
09/21 |
POLLOCK(396712) |
05/06 |
04/23 |
04/16 |
04/06 |
09/12 |
09/14 |
09/22 |
09/23 |
PORCUPINE 11 N(396736) |
05/16 |
05/06 |
04/15 |
04/14 |
08/19 |
09/10 |
09/18 |
09/18 |
PRESHO 7 NW(396790) |
05/07 |
04/24 |
04/19 |
04/05 |
09/09 |
09/11 |
09/19 |
09/29 |
RALPH 1 N(396907) |
05/15 |
05/05 |
04/21 |
04/14 |
08/04 |
09/01 |
09/07 |
09/12 |
RAPID CITY REGIONAL ARPT(396937) |
05/08 |
04/23 |
04/13 |
04/03 |
09/09 |
09/13 |
09/21 |
09/21 |
RAPID CITY 4 NW(396947) |
05/05 |
05/02 |
04/17 |
04/05 |
09/11 |
09/14 |
09/18 |
10/06 |
REDFIELD(397047) |
04/25 |
04/25 |
04/06 |
03/31 |
09/03 |
09/12 |
09/22 |
09/30 |
REDFIELD 2 NE(397052) |
05/08 |
04/22 |
04/21 |
04/05 |
09/01 |
09/12 |
09/19 |
09/27 |
REDIG 11 NE(397062) |
05/15 |
05/05 |
04/23 |
04/14 |
08/31 |
09/09 |
09/14 |
09/18 |
RED OWL(397073) |
05/13 |
05/07 |
04/29 |
04/16 |
08/26 |
09/14 |
09/15 |
09/19 |
ROCHFORD 2WNW(397227) |
06/20 |
06/16 |
05/20 |
05/06 |
07/03 |
07/04 |
07/27 |
08/31 |
ROSCOE(397277) |
05/08 |
04/22 |
04/17 |
04/08 |
09/18 |
09/18 |
09/22 |
09/29 |
SCENIC(397512) |
04/25 |
04/06 |
04/05 |
04/03 |
09/11 |
09/29 |
10/06 |
10/06 |
SELBY(397545) |
05/07 |
04/24 |
04/20 |
04/06 |
09/01 |
09/12 |
09/20 |
09/26 |
SHADEHILL DAM(397567) |
05/14 |
04/29 |
04/20 |
04/07 |
09/02 |
09/02 |
09/13 |
09/28 |
SIOUX FALLS FOSS FIELD(397667) |
04/25 |
04/12 |
04/09 |
03/25 |
09/12 |
09/18 |
09/22 |
09/29 |
SISSETON(397742) |
04/28 |
04/22 |
04/08 |
03/27 |
09/13 |
09/20 |
09/29 |
10/06 |
SPEARFISH(397882) |
05/06 |
04/23 |
04/07 |
03/29 |
09/10 |
09/13 |
09/30 |
10/09 |
STEPHAN 1 ENE(397992) |
05/07 |
04/24 |
04/17 |
04/09 |
09/01 |
09/03 |
09/20 |
09/22 |
SUMMIT 1 W(398116) |
05/09 |
04/24 |
04/18 |
04/10 |
08/29 |
09/07 |
09/20 |
09/23 |
TIMBER LAKE(398307) |
05/06 |
04/23 |
04/20 |
04/05 |
09/11 |
09/18 |
09/20 |
09/22 |
TYNDALL(398472) |
04/18 |
04/14 |
04/03 |
03/21 |
09/12 |
09/21 |
09/22 |
10/09 |
UNION CENTER(398494) |
05/31 |
05/23 |
05/03 |
04/08 |
08/31 |
09/14 |
09/28 |
09/30 |
USTA 8 WNW KELLY RANCH(398528) |
05/02 |
04/30 |
04/20 |
04/10 |
08/11 |
09/02 |
09/09 |
09/25 |
VALE(398552) |
04/28 |
04/25 |
04/07 |
04/03 |
09/02 |
09/03 |
09/21 |
09/28 |
VERMILLION 2 SE(398622) |
04/29 |
04/22 |
04/07 |
03/30 |
09/08 |
09/21 |
09/22 |
10/06 |
VICTOR 4 NNE(398652) |
04/25 |
04/19 |
04/12 |
04/02 |
09/09 |
09/19 |
09/29 |
10/02 |
VIVIAN(398727) |
06/16 |
05/24 |
05/15 |
04/23 |
08/31 |
09/13 |
09/28 |
09/30 |
WAGNER(398767) |
04/24 |
04/11 |
04/05 |
03/25 |
09/13 |
09/21 |
09/23 |
10/09 |
WASTA(398911) |
05/06 |
04/25 |
04/15 |
04/09 |
09/01 |
09/11 |
09/20 |
09/21 |
WATERTOWN MUNICIPAL AP(398932) |
05/07 |
04/24 |
04/18 |
04/04 |
09/08 |
09/15 |
09/23 |
09/23 |
WAUBAY NATL WILDLIFE REF(398980) |
04/29 |
04/18 |
04/16 |
04/03 |
09/12 |
09/22 |
09/23 |
10/03 |
WEBSTER(399004) |
05/07 |
04/18 |
04/17 |
03/30 |
09/11 |
09/21 |
09/22 |
09/29 |
WENTWORTH 2 WNW(399042) |
04/24 |
04/21 |
04/09 |
03/25 |
09/12 |
09/19 |
09/22 |
10/06 |
WESSINGTON SPRINGS(399070) |
04/24 |
04/18 |
04/05 |
03/24 |
09/14 |
09/21 |
09/30 |
10/10 |
WHITE LAKE(399232) |
04/25 |
04/18 |
04/09 |
04/01 |
09/13 |
09/19 |
09/22 |
10/02 |
WIND CAVE(399347) |
05/08 |
05/02 |
04/27 |
04/17 |
09/09 |
09/14 |
09/18 |
09/18 |
WINNER(399367) |
04/23 |
04/21 |
04/08 |
03/29 |
09/12 |
09/18 |
09/23 |
10/06 |
WOOD(399442) |
05/07 |
04/23 |
04/16 |
04/02 |
09/03 |
09/16 |
09/19 |
10/02 |
Data indicates day of year - 10 percentile (last 30-yr)